The punchline to your comment is - you already do! There are literally thousands of Palestinians currently held in Israeli prisons, many without having been charged, often in appalling conditions with minimal visitation by the international aid orgs. One poor bloody Israeli private gets a taste of the same treatment, and look at the wailing that ensues! Here's an idea - cut a deal. Hamas treat Gilad as a legitimate prisoner of war and Israel does the same for it's internees?
U.S. weighs sanctioning Russia as well as China in cyber attacks (Reuters)
from the article: MESS Report / Understanding Israel's national obsession with Shalit